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      1 /* ------------------------------------------------------------------
      2  * Copyright (C) 1998-2009 PacketVideo
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
     13  * express or implied.
     14  * See the License for the specific language governing permissions
     15  * and limitations under the License.
     16  * -------------------------------------------------------------------
     17  */
     18 /****************************************************************************************
     19 Portions of this file are derived from the following 3GPP standard:
     20 
     21     3GPP TS 26.073
     22     ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
     23     Available from http://www.3gpp.org
     24 
     25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
     26 Permission to distribute, modify and use this file under the standard license
     27 terms listed above has been obtained from the copyright holder.
     28 ****************************************************************************************/
     29 /*
     30 
     31  Filename: /audio/gsm_amr/c/include/int_lsf.h
     32 
     33 ------------------------------------------------------------------------------
     34  REVISION HISTORY
     35 
     36  Description: Moved _cplusplus #ifdef after Include section.
     37 
     38  Who:                       Date:
     39  Description:
     40 
     41 ------------------------------------------------------------------------------
     42  INCLUDE DESCRIPTION
     43 
     44  This file contains all the constant definitions and prototype definitions
     45  needed by the int_lsf function.
     46 
     47 ------------------------------------------------------------------------------
     48 */
     49 
     50 /*----------------------------------------------------------------------------
     51 ; CONTINUE ONLY IF NOT ALREADY DEFINED
     52 ----------------------------------------------------------------------------*/
     53 #ifndef int_lsf_h
     54 #define int_lsf_h "$Id $"
     55 
     56 /*----------------------------------------------------------------------------
     57 ; INCLUDES
     58 ----------------------------------------------------------------------------*/
     59 #include "typedef.h"
     60 
     61 /*--------------------------------------------------------------------------*/
     62 #ifdef __cplusplus
     63 extern "C"
     64 {
     65 #endif
     66 
     67     /*----------------------------------------------------------------------------
     68     ; MACROS
     69     ; Define module specific macros here
     70     ----------------------------------------------------------------------------*/
     71 
     72     /*----------------------------------------------------------------------------
     73     ; DEFINES
     74     ; Include all pre-processor statements here.
     75     ----------------------------------------------------------------------------*/
     76 
     77     /*----------------------------------------------------------------------------
     78     ; EXTERNAL VARIABLES REFERENCES
     79     ; Declare variables used in this module but defined elsewhere
     80     ----------------------------------------------------------------------------*/
     81 
     82     /*----------------------------------------------------------------------------
     83     ; SIMPLE TYPEDEF'S
     84     ----------------------------------------------------------------------------*/
     85 
     86     /*----------------------------------------------------------------------------
     87     ; ENUMERATED TYPEDEF'S
     88     ----------------------------------------------------------------------------*/
     89 
     90     /*----------------------------------------------------------------------------
     91     ; STRUCTURES TYPEDEF'S
     92     ----------------------------------------------------------------------------*/
     93 
     94     /*----------------------------------------------------------------------------
     95     ; GLOBAL FUNCTION DEFINITIONS
     96     ; Function Prototype declaration
     97     ----------------------------------------------------------------------------*/
     98     void Int_lsf(
     99         Word16 lsf_old[], /* i : LSF vector at the 4th SF of past frame         */
    100         Word16 lsf_new[], /* i : LSF vector at the 4th SF of present frame      */
    101         Word16 i_subfr,   /* i : Current sf (equal to 0,40,80 or 120)           */
    102         Word16 lsf_out[], /* o : interpolated LSF parameters for current sf     */
    103         Flag  *pOverflow  /* o : flag set if overflow occurs                    */
    104     );
    105 
    106     /*----------------------------------------------------------------------------
    107     ; END
    108     ----------------------------------------------------------------------------*/
    109 #ifdef __cplusplus
    110 }
    111 #endif
    112 
    113 #endif /* _INT_LSF_H_ */
    114